Louis fenn vogt



lowing to be a full, clear, and exact descrip- UNITED STATES PATENT orrrcn.

LOUIS .FENN VOGT, OF WASHINGTON, PENNSYLVANIA, ASSIGNOR TO STANDARD CHEMICAL COMPANY, OF WASHINGTON, PENNSYLVANIA.

Patented May 20, 1919.

ALLOY.

1,304,224, Specification of Letters Patent. No Drawing. Application filed March 11, 1918. Serial No. 221,718.

To all whom it may concern:

Be' it known that- I, LOUIS F. Voc'r, a citizen'of the United States, and a resident of Washington, in the county of Washington and State of Pennsylvania, have invented certain new and useful Improvements in Alloys; andI do hereby declare the foltion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement aluminum and aluminum alloys as to enhance the'strength and toughness thereof and render the same eminently useful for various purposes for which aluminum and aluminum alloys now in use are not satisfactory and eflicient.

With this and other objects in view, the invention consists in an alloy as hereinafter set forth and pointed out in the claims.

The-invention further consists of an alloy comprising aluminum having alloyed therewith from .O5per cent. to two per cent. of uranium. I

In producing my improved aluminum product, I may first make an alloy of aluminum and uranium having a high content of uranium, and then employing this product as a vehicle for introducing a small amount of uranium into aluminum so that it willbecome thoroughly distributed throughout the aluminum and become alloyed therewith. In making the aluminum-uranium alloy having a high content of uranium and which may be considered to be an alloy in concentrated form, I may employ a process wherein uranium oxid may be mixed with aluminum and subjected to reduction at a proper temperature. 'An example of such a process may consist in first melting aluminum by any convenient means, such as in a crucible in a gas furnace and protected by a suitable slag; then a mixture of uranium oxid and aluminum shot may be there could be used approximately sixteen pounds of aluminum shot mixed with ten pounds of uranium oxid analyzing about eighty to eighty-five per cent. U 0 This will result in an aluminum-uranium alloy containing approximately fifteen per cent. uranium. The concentrated alloy or product may be incorporated into themass of aluminum by introducing it into a bath of aluminum so that the uranium will become distributed throughout and become alloyed with the entire mass of aluminum in the proportion of from .05 per cent. to .two per cent. uranium content.

I have found that the addition of uranium to aluminum and aluminum alloys imparts to the same properties which cannot other- Wise be obtained (particularly it adds materially to the strength and toughness ofthe metal and alloys), and it affects the micro structure favorably.

Uranium is known to be a good de-oxidizer and it is .believed to have considerable affinity for nitrogen. Aluminum is believed to contain considerable quantities of nitrogen, depending somewhat on the method of melting and the temperature to which it is heated and uranium is believed to have influence in deoxidizing and denitrogenizing aluminum.

Having fully described my invention,

what I claim as new and desire to secure by minum and. uranium, the aluminum composing the major portion of the alloy and the uranium content being less than approximately two per cent.

3. An alloy having high qualityv of strength andv toughness, comprising aluminum and uranium, the uranium being in the proportion of from approximfitely ,05

to approximately 2 per cent.

In testimony wheieofJI have signed this spec1fication in the presence of two subscrib- 10 

